﻿using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace WPFDevelopers.Controls
{
    public class RoundPicker : Control
    {
        private Canvas _canvas;
        private char[] _singleLastName = new char[444] {
                '赵', '钱', '孙', '李', '周', '吴', '郑', '王', '冯', '陈',
                '褚', '卫', '蒋', '沈', '韩', '杨', '朱', '秦', '尤', '许',
                '何', '吕', '施', '张', '孔', '曹', '严', '华', '金', '魏',
                '陶', '姜', '戚', '谢', '邹', '喻', '柏', '水', '窦', '章',
                '云', '苏', '潘', '葛', '奚', '范', '彭', '郎', '鲁', '韦',
                '昌', '马', '苗', '凤', '花', '方', '俞', '任', '袁', '柳',
                '酆', '鲍', '史', '唐', '费', '廉', '岑', '薛', '雷', '贺',
                '倪', '汤', '滕', '殷', '罗', '毕', '郝', '邬', '安', '常',
                '乐', '于', '时', '傅', '皮', '卞', '齐', '康', '伍', '余',
                '元', '卜', '顾', '孟', '平', '黄', '和', '穆', '萧', '尹',
                '姚', '邵', '湛', '汪', '祁', '毛', '禹', '狄', '米', '贝',
                '明', '臧', '计', '伏', '成', '戴', '谈', '宋', '茅', '庞',
                '熊', '纪', '舒', '屈', '项', '祝', '董', '梁', '杜', '阮',
                '蓝', '闵', '席', '季', '麻', '强', '贾', '路', '娄', '危',
                '江', '童', '颜', '郭', '梅', '盛', '林', '刁', '钟', '徐',
                '邱', '骆', '高', '夏', '蔡', '田', '樊', '胡', '凌', '霍',
                '虞', '万', '支', '柯', '昝', '管', '卢', '莫', '经', '房',
                '裘', '缪', '干', '解', '应', '宗', '丁', '宣', '贲', '邓',
                '郁', '单', '杭', '洪', '包', '诸', '左', '石', '崔', '吉',
                '钮', '龚', '程', '嵇', '邢', '滑', '裴', '陆', '荣', '翁',
                '荀', '羊', '於', '惠', '甄', '麴', '家', '封', '芮', '羿',
                '储', '靳', '汲', '邴', '糜', '松', '井', '段', '富', '巫',
                '乌', '焦', '巴', '弓', '牧', '隗', '山', '谷', '车', '侯',
                '宓', '蓬', '全', '郗', '班', '仰', '秋', '仲', '伊', '宫',
                '宁', '仇', '栾', '暴', '甘', '钭', '厉', '戎', '祖', '武',
                '符', '刘', '景', '詹', '束', '龙', '叶', '幸', '司', '韶',
                '郜', '黎', '蓟', '薄', '印', '宿', '白', '怀', '蒲', '邰',
                '从', '鄂', '索', '咸', '籍', '赖', '卓', '蔺', '屠', '蒙',
                '池', '乔', '阴', '郁', '胥', '能', '苍', '双', '闻', '莘',
                '党', '翟', '谭', '贡', '劳', '逄', '姬', '申', '扶', '堵',
                '冉', '宰', '郦', '雍', '舄', '璩', '桑', '桂', '濮', '牛',
                '寿', '通', '边', '扈', '燕', '冀', '郏', '浦', '尚', '农',
                '温', '别', '庄', '晏', '柴', '瞿', '阎', '充', '慕', '连',
                '茹', '习', '宦', '艾', '鱼', '容', '向', '古', '易', '慎',
                '戈', '廖', '庾', '终', '暨', '居', '衡', '步', '都', '耿',
                '满', '弘', '匡', '国', '文', '寇', '广', '禄', '阙', '东',
                '欧', '殳', '沃', '利', '蔚', '越', '夔', '隆', '师', '巩',
                '厍', '聂', '晁', '勾', '敖', '融', '冷', '訾', '辛', '阚',
                '那', '简', '饶', '空', '曾', '毋', '沙', '乜', '养', '鞠',
                '须', '丰', '巢', '关', '蒯', '相', '查', '後', '荆', '红',
                '游', '竺', '权', '逯', '盖', '益', '桓', '公', '仉', '督',
                '晋', '楚', '闫', '法', '汝', '鄢', '涂', '钦', '归', '海',
                '岳', '帅', '缑', '亢', '况', '后', '有', '琴', '商', '牟',
                '佘', '佴', '伯', '赏', '墨', '哈', '谯', '笪', '年', '爱',
                '阳', '佟', '言', '福'
            };
        private Random _random = new Random();
        private int _rdnumber;



        public string SelectItem
        {
            get { return (string)GetValue(SelectItemProperty); }
            set { SetValue(SelectItemProperty, value); }
        }

        public static readonly DependencyProperty SelectItemProperty =
            DependencyProperty.Register("SelectItem", typeof(string), typeof(RoundPicker), new PropertyMetadata("闫"));


        static RoundPicker()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(RoundPicker), new FrameworkPropertyMetadata(typeof(RoundPicker)));
        }
        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();
            

            _canvas = GetTemplateChild("PART_Canvas") as Canvas;
            if (_canvas == null) return;
        }
        int zIndex = 0, count = 0;
        public RoundPicker()
        {
            this.Loaded += (s, e) =>
            {
                if (_canvas == null) return;

                double radius = 5;
                double thickness = 0.4;

                double rIn = radius - thickness, rOut = radius + thickness;
                double left = 10d, top = 10d;
                var brushConverter = new BrushConverter();
                var ellipse = new Ellipse
                {
                    
                    Stroke = (Brush)brushConverter.ConvertFromString("#F56C6C"),
                    StrokeThickness = 2,
                    SnapsToDevicePixels = true,
                    UseLayoutRounding = true,
                    Fill = (Brush)brushConverter.ConvertFromString("#F2F6FC"),
                };
                _canvas.Children.Add(ellipse);
                for (double y = radius; y >= -radius; --y)
                {
                    for (double x = -radius; x < rOut; x += 1)
                    {
                        _rdnumber = _random.Next(444);
                        var button = new Button
                        {
                            Width = 20,
                            Height = 20,
                            Cursor = Cursors.Hand,
                            Content= _singleLastName[_rdnumber],
                            UseLayoutRounding = true,
                            Padding = new Thickness(0),
                            Style = (Style)this.FindResource("PrimaryButton")
                        };
                        button.RenderTransformOrigin = new Point(.5, .5);
                        button.RenderTransform = new ScaleTransform();
                        button.MouseMove += (sender, ex) =>
                        {
                            var btn = sender as Button;
                            Panel.SetZIndex(btn, 1);
                            var doubleAnimation = new DoubleAnimation 
                            {
                                To = 2,
                                Duration = TimeSpan.FromMilliseconds(100),
                            };
                            var scaleTransform = btn.RenderTransform as ScaleTransform;
                            scaleTransform.BeginAnimation(ScaleTransform.ScaleXProperty, doubleAnimation);
                            scaleTransform.BeginAnimation(ScaleTransform.ScaleYProperty, doubleAnimation);
                            

                        };
                        button.MouseLeave += (sender, ex) =>
                        {
                            var btn = sender as Button;
                            var scaleTransform = btn.RenderTransform as ScaleTransform;
                            var doubleAnimation = new DoubleAnimation
                            {
                                To = 1,
                                Duration = TimeSpan.FromMilliseconds(100)
                            };
                            scaleTransform.BeginAnimation(ScaleTransform.ScaleXProperty, doubleAnimation);
                            scaleTransform.BeginAnimation(ScaleTransform.ScaleYProperty, doubleAnimation);
                            Panel.SetZIndex(btn, 0);
                        };
                        button.Click += (sender, ex) => 
                        {
                            var btn = sender as Button;
                            SelectItem = btn.Content.ToString();
                        };
                        
                        double value = x * x + y * y;
                        if (value >= rIn * rIn && value <= rOut * rOut)
                        {
                            _canvas.Children.Add(button);
                            Canvas.SetTop(button, top);
                            Canvas.SetLeft(button, left);
                        }
                        else if (value < rIn * rIn && value < rOut * rOut)
                        {
                            _canvas.Children.Add(button);
                            Canvas.SetTop(button, top);
                            Canvas.SetLeft(button, left);
                        }
                        left = left + button.Width + 1;
                    }
                    left = 10d;
                    top = top + 21;
                }
                ellipse.Width = top + 9;
                ellipse.Height = top + 9;
                //Panel.SetZIndex(ellipse, 0);

                //count = _canvas.Children.Count + 1;
            };
        }

    }
}
